Re: [RFC][PATCH RT 0/3] RT: Fix trylock deadlock without msleep() hack

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On Sat, 5 Sep 2015 08:18:36 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:


> I even had that solution in my slides at LinuxCon/LinuxPlumbers ;-)

Here's my slides:

http://rostedt.homelinux.com/private/linux-con-rt-into-mainline-2015.pdf

Slide 19 is where I start talking about it.

Slide 21 shows Ingo's solution.

Slide 22 shows the complex issue of dcache.c.

Would your solution work with that code?

-- Steve

> 
> 
> But then I talk about dcache.c. Take a look at that file, and the
> complexity of that. Is it safe to take the inode and dcache parent
> locks after you unlock the other locks?

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